Universal Access To All Knowledge
Home Donate | Store | Blog | FAQ | Jobs | Volunteer Positions | Contact | Bios | Forums | Projects | Terms, Privacy, & Copyright
Search: Advanced Search
Anonymous User (login or join us)
Upload
Search Results
Results: 1 through 44 of 44 (0.035 secs)
You searched for: creator:"Duncan Forbes"
[texts]Globular Clusters in Elliptical Galaxies: Constraints on Mergers - Duncan Forbes
Understanding the formation of globular clusters will help us to constrain the evolutionary history of galaxies. For mergers on-going today, it appears that the number of newly created proto-globulars varies with the progenitor types and that the percentage increase in the total cluster population is 100% or less. Elliptical galaxies, which are generally thought to be the end-result of such mergers, often show evidence for two populations of globular clusters...
Downloads: 2
[texts]The Works of Forbes: To which is Prefixed a Biographical Sketch of the Life of the Author by J ... - Duncan Forbes
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Downloads: 194
[texts]Some Thoughts Concerning Religion, Natural and Revealed: With a Letter to a Bishop, Concerning ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 78
[texts]The Baitāl-pachīsī: or, The twenty-five tales of a demon : a new and ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 428
[texts]Bāgh O Bahār; Or Tales of the Four Darweshes - Duncan Forbes
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
Downloads: 249
[texts]A Grammar of the Arabic Language: Intended More Especially for the Use of ... - Duncan Forbes
Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb.
Downloads: 485
[texts]The Baitāl-pachīsī: or, The twenty-five tales of a demon : a new and ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 130
[texts]A smaller Hindustani and English dictionary - DUNCAN. FORBES
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 2,400
[texts]A grammar of the Hindustānī language in the oriental and Roman character. To ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 727
[texts]A Dictionary, Hindustani & English: Accompanied by a Reversed Dictionary ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 941
[texts]A Grammar Of The Arabic Language; - Duncan Forbes

Keywords: LANGUAGES
Downloads: 2,638 4.00 out of 5 stars4.00 out of 5 stars4.00 out of 5 stars4.00 out of 5 stars(1 review)
[texts]Bāg̲h̲ o bahār: consisting of the adventures of the four darwesh, and of the ... - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 13,193
[texts]Historicall account of the origine and succession of the family of Innes [by D. Forbes]. - Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 101
[texts]A Grammar of the Persian Language: To which is Added, a Selection of Easy ... - Duncan Forbes
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
Downloads: 415
[texts]Star Formation in Southern Seyfert Galaxies - Duncan Forbes
We have produced radio maps, using the ATCA, of the central regions of six southern Seyfert 2 galaxies (NGC 1365, 4945, 6221, 6810, 7582, and Circinus) with circumnuclear star formation, to estimate the relative contribution of star formation activity compared to activity from the active galactic nucleus (AGN). The radio morphologies range from extended diffuse structures to compact nuclear emission, with no evidence, even in the relatively compact sources, for synchrotron self--absorption...
[texts]What is a Galaxy? Cast your vote here... - Duncan Forbes
Although originally classified as galaxies, Ultra Compact Dwarfs (UCDs) share many properties in common with globular star clusters. The debate on the origin and nature of UCDs, and the recently discovered ultra-faint dwarf spheroidal (dSph) galaxies which contain very few stars, has motivated us to ask the question `what is a galaxy?' Our aim here is to promote further discussion of how to define a galaxy and, in particular, what separates it from a star cluster...
Downloads: 3
[texts]Radial Kinematics of Isolated Elliptical Galaxies - George Hau
Ellipticals in very low density environments are extremely rare but hold important clues about galaxy formation and evolution. In this paper we continue our study of isolated elliptical galaxies, presenting results on the radial stellar kinematics for 13 isolated early-type galaxies. We derive radial rotation velocity, velocity dispersion and hermite terms to ~1 effective radius. We observe a dichotomy in kinematic properties similar to that in the elliptical population as a whole, where low lum...
Downloads: 8
[texts]Bagh O Bahar Or Tales Of The Four Darweshes - Duncan Forbes Ll.D

Keywords: Literature
Downloads: 510
[texts]Bagh O Bahar; On Tales Of The Four Darweshes. - Duncan Forbes,Ll.D

Keywords: Literature
Downloads: 661
[texts]Poultry foods and feeding, a manual for all breeders - Laurie, Duncan Forbes
The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
Keywords: Poultry
Downloads: 204
[texts]The Baitāl Pachchisī: Or, The Twenty-five Tales of a Sprite - John Thompson Platts , Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 91
[texts]A Grammar of the Persian Language - Duncan Forbes , Ḥikāyāt-i laṭīf
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 893
[texts]The Baitāl Pachchisī: Or, The Twenty-five Tales of a Sprite - John Thompson Platts , Duncan Forbes
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 94
[texts]Dependence of the Fundamental Plane Scatter on Galaxy Age - Duncan Forbes
The fundamental plane (FP) has an intrinsic scatter that can not be explained purely by observational errors. Using recently available age estimates for nearby early type galaxies, we show that a galaxy's position relative to the FP depends on its age. In particular, the mean FP corresponds to ellipticals with an age of ~10 Gyr. Younger galaxies are systematically brighter with higher surface brightness relative to the mean relation...
Downloads: 1
[texts]Arabic Reading Lessons: Consisting of Easy Extracts from the Best Authors, Together with a ... - Duncan Forbes , Edward Vernon Schalch , George Sale
Book digitized by Google and uploaded to the Internet Archive by user tpb.
Downloads: 951
[texts]HI Mapping of Galaxies in Six GEMS Groups - Katie Kern
Here we present Australia Telescope Compact Array HI maps of 16 HI sources in six Group Evolution Multiwavelength Study (GEMS) groups that were previously observed with the Parkes telescope. The higher spatial resolution of the ATCA allows us to clearly identify the optical counterparts for the first time -- most being associated with low surface brightness late-type galaxies. New integrated HI maps and velocity fields for each source are presented...
Downloads: 3
[texts]Uniting Old Stellar Systems: From Globular Clusters to Giant Ellipticals - Duncan Forbes
Here we examine the relationship between the virial and stellar mass for a range of old stellar systems, from GCs to giant ellipticals, and including such Intermediate Mass Objects (IMOs). Improvements on previous work in this area include the use of (i) near-infrared magnitudes from the 2MASS survey, (ii) aperture corrections to velocity dispersions, (iii) homogeneous half light radii and (iv) accounting for the effects of non-homology in galaxies...
Downloads: 1
[texts]Southern GEMS Groups I: Dynamical Properties - Sarah Brough
Here we present an investigation of the properties of 16 nearby galaxy groups and their constituent galaxies. The groups are selected from the Group Evolution Multi-wavelength Study (GEMS) and all have X-ray as well as wide-field neutral hydrogen (HI) observations. Group membership is determined using a friends-of-friends algorithm on the positions and velocities from the 6-degree Field Galaxy Survey (6dFGS) and NASA/IPAC Extra-galactic Database (NED)...
Downloads: 1
[texts]HST Imaging of the Globular Clusters in the Fornax Cluster: NGC 1399 and NGC 1404 - Duncan Forbes
The Fornax cluster galaxies NGC 1399 and NGC 1404 are ideal for studying the effects of a cluster environment on globular cluster systems. Here we present new optical imaging of these two galaxies from both the Hubble Space Telescope's Wide Field and Planetary Camera 2 and the Cerro Tololo Inter-American Observatory's 1.5m telescope. The combination of both data sets provides unique insight on the spatial and colour distribution of globular clusters...
Downloads: 7
[texts][Culloden papers] More Culloden papers - H. R. Duff, Duncan Forbes, Baron Simon Fraser Lovat
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Keywords: Forbes family
Downloads: 898
[texts]Poultry conference; official report of proceedings - South Australia. Dept. of Agriculture
The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
Keywords: Poultry
Downloads: 118
[texts]Eridanus - A Supergroup in the Local Universe? - Sarah Brough
We examine a possible supergroup in the direction of the Eridanus constellation using 6dF Galaxy Survey second data release (6dFGS DR2) positions and velocities together with 2MASS and HyperLEDA photometry. We perform a friends-of-friends analysis to determine which galaxies are associated with each substructure before examining the properties of the constituent galaxies. The structure is made up of three individual groups that are likely to merge to form a cluster of mass 7x10^13 Msolar...
Downloads: 9
[texts]Galaxy Disruption in a Halo of Dark Matter - Duncan Forbes
The relics of disrupted satellite galaxies around the Milky Way and Andromeda have been found, but direct evidence of a satellite galaxy in the early stages of being disrupted has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo. Our results illustrate the morphological transformation of dwarf galaxies by tidal interaction and the continued build-up of galaxy halos.
Downloads: 4
[texts]Probing Spectral Line Gradients Beyond One Effective Radius in NGC 3610 - Justin Howell
The outer region (0.75--1.25 r_e in the B-band) of the merger-remnant elliptical NGC 3610 is studied using extremely high signal to noise Keck spectra, with a supplementary spectrum of the galaxy center. Stellar population parameters -- age, [Z/H], [$\alpha$/Fe] -- are measured in several apertures along the slit. Using the multi-index simultaneous fitting method of Proctor et al. (2004), no significant stellar population gradients are detected in the outer parts of the galaxy...
Downloads: 4
[texts]Structural Parameters for Globular Clusters in NGC 5128. II: HST/ACS Imaging and New Clusters - William E. Harris
We report the first results from an imaging program with the ACS camera on HST designed to measure the structural characteristics of a wide range of globular clusters in NGC 5128, the nearest giant elliptical galaxy. From 12 ACS/WFC fields, we have measured a total of 62 previously known globular clusters and have discovered 69 new high-probability cluster candidates not found in any previous work...
[texts]Evidence for Two Phases of Galaxy Formation from Radial Trends in the Globular Cluster System of NGC 1407 - Duncan Forbes
Here we present the colours of individual globular clusters (GCs) around the massive elliptical galaxy NGC 1407 out to a projected galactocentric radius of 140 kpc or 17 galaxy effective radii (R$_e$). Such data are a proxy for the halo metallicity. We find steep, and similar, metallicity gradients of ~ -0.4 dex per dex for both the blue (metal-poor) and red (metal-rich) GC subpopulations within 5-8.5 R_e (40-70 kpc)...
Downloads: 3
[texts]Bridging the gap between low and high mass dwarf galaxies - Duncan Forbes
While the dark matter content within the most massive giant and smallest dwarf galaxies has been probed -- spanning a range of over one million in mass -- an important observational gap remains for galaxies of intermediate mass. This gap covers K band magnitudes of approximately -16 > M_K > -18 (for which dwarf galaxies have B--K ~ 2). On the high mass side of the gap are dwarf elliptical (dE) galaxies, that are dominated by stars in their inner regions...
Downloads: 7
[texts]An Imaging Study of the Globular Cluster Systems of NGC 1407 and NGC 1400 - Duncan Forbes
We present wide-field Keck telescope imaging of the globular cluster (GC) systems around NGC 1407 and NGC 1400 in the Eridanus galaxy cloud. This is complemented by Hubble Space Telescope images from the Advanced Camera for Surveys of NGC 1407 and Wide Field and Planetary Camera 2 images of NGC 1400. We clearly detect bimodality in the GC colour distribution of NGC 1407. The blue GC subpopulation has a mean colour of B-I = 1.61 and a relative contribution of around 40%, whereas the red subpopula...
Downloads: 6
[texts]Is NGC 3108 transforming itself from an early to late type galaxy -- an astronomical hermaphrodite? - George Hau
A common feature of hierarchical galaxy formation models is the process of "inverse" morphological transformation: a bulge dominated galaxy accretes a gas disk, dramatically reducing the system's bulge-to-disk mass ratio. During their formation, present day galaxies may execute many such cycles across the Hubble diagram. A good candidate for such a "hermaphrodite" galaxy is NGC 3108: a dust-lane early-type galaxy which has a large amount of HI gas distributed in a large scale disk...
Downloads: 28
[texts]Group, field and isolated early-type galaxies I. Observations and nuclear data - Glenda Denicolo
This is the first paper of a series on the investigation of stellar population properties and galaxy evolution of an observationally homogeneous sample of early-type galaxies in groups, field and isolated galaxies. We present high S/N long-slit spectroscopy of 86 nearby elliptical and S0 galaxies. 8 of them are isolated, selected according to a rigorous criterion. This survey has the advantage of covering a larger wavelength range than normally found in the literature, including [OIII]5007 and H...
Downloads: 11
[texts]Globular Clusters in Early-Type Galaxies with GMOS - Terry Bridges
We present recent results from our long-term Gemini/GMOS study of globular clusters in early-type galaxies. To date, we have obtained photometry and spectroscopy for clusters in NGCs 3379, 4649, 524, 7332, and IC 1459. We find a clear bimodality in the NGC 4649 cluster colour distribution, with the fraction of blue/red clusters increasing with galactocentric radius. We derive ages and metallicities for 22 clusters in NGC 3379, finding that most of the clusters appear old (10-15 Gyr); however, th...
Downloads: 4
[texts]The Fossil Record of Two-phase Galaxy Assembly: Kinematics and Metallicities in the Nearest S0 Galaxy - Jacob A. Arnold
We present a global analysis of kinematics and metallicity in the nearest S0 galaxy, NGC 3115, along with implications for its assembly history. The data include high-quality wide-field imaging from Suprime-Cam on the Subaru telescope, and multi-slit spectra of the field stars and globular clusters (GCs) obtained using Keck-DEIMOS/LRIS and Magellan-IMACS. Within two effective radii, the bulge (as traced by the stars and metal-rich GCs) is flattened and rotates rapidly (v/sigma > 1.5)...
Downloads: 4
[texts]The WiggleZ project: AAOmega and Dark Energy - Karl Glazebrook
We describe the `WiggleZ' spectroscopic survey of 280,000 star-forming galaxies selected from a combination of GALEX ultra-violet and SDSS + RCS2 optical imaging. The fundamental goal is a detection of the baryonic acoustic oscillations in galaxy clustering at high-redshift (0.5 < z < 1) and a precise measurement of the equation of state of dark energy from this purely geometric and robust method. The survey has already started on the 3.9m Anglo-Australian Telescope using the AAOmega spectrograp...
Downloads: 3
[texts]The WiggleZ Dark Energy Survey: small-scale clustering of Lyman Break Galaxies at z < 1 - Chris Blake
The WiggleZ Dark Energy Survey is a large-scale structure survey of intermediate-redshift UV-selected emission-line galaxies scheduled to cover 1000 sq deg, spanning a broad redshift range 0.2 < z < 1.0. The main scientific goal of the survey is the measurement of baryon acoustic oscillations (BAO) in the galaxy clustering pattern at a significantly higher redshift than previous studies. The BAO may be applied as a standard cosmological ruler to constrain dark energy models...
Downloads: 9
Advanced search

Group results by:

> Relevance
Mediatype
Collection

Related mediatypes

texts